Ceiling-rosette for drop electric lamps.



Patented May 11, 1909.

W. WILBRAHAM-` CEILING EOSETTE POE DROP ELECTRIC LAMPS. APILIOATIONFILED JULY 14, 1908.

Uhr i. nir; winni.;

WILLIAM WILBRAHAM,

OF CHICAGO,v ILLINOIS.

CEILING-RQSETTE FOR DBO? ELECTRIC LAMPS.

Application led July 11.1., 1908.

used vo connect the electric lamp cord to the ceiling in the wiringWerl; i'or lighting buildings and has lor its object to simplify theconstruction work, save cost and to produce a neat rosette and one thatwill be saler Yfrom a i'ire standpoint than the rosettes hereto- '['oreused.

teierence will be hadv to the accompanying drawing in which,

Figure l is a top plan view oi' my invention and Fig. 2 is a sidesectional view. Fig. 3 is a side elevation.

In the drawing A indicates the rosette which may be any suitable bloei;ol' porcelain or other suitable material made in any ornamental shapebut I prefer to use the shape here shown. In this block A there is acavity B into which there extends a side cavity C. As an extension oilcavity E there is a smaller cavity l) extended through the block andprovided with a shoulder E adapted to tit the under side ol' a screwheadl` ol' a screw G, which extends upward into an expansion nut Il set intoa concrete ceiling I, but the screw G may be used to secure the rosetteto any ceiling. A rim d on the edge of the cavity K causes the rosetteto bear on the outer edges o'l the rosette and bear i'irmly on theceiling without rocking which is a desideratum.

The electric lamp cord or wires L come along the ceiling and are passedthrough the hole or aperture C into the cavity B and then drop downwardto the lamp M thus allowing the simplest construction possible.

In all other rosettes of this class heretofore used it requires two ormore screws to hold them upward to the ceiling and in concrete work thisis expensive and also it does not make as good a job, and in otherinstances a wooden block is iirst screwed to the ceiling permanently andthen the rosette is detachablyiixed thereto which is made necessary toproperly iin the wires to the rosette. Further With two or more piecesto the rosette Specification or Letters Patent.

EatentedMay 11, 1909.

Serial No. 143,55).

i it affords an abode for insects that is objectionable and they are notas safe from a fire standpoint.

Y"d'vhat I claim is,

I. il rosette consisting of a block oic insulating material having anaxial passage extending through the block and a lateral per forati-on inthe wall of the passaffe, said pas sage being provided with an in te alshoulder above the lateral perforation to receive the head or anattaching` screw,V` inserted in the pa whereby the blocl may be securery to wall bysuoh screw and a conductor may be if. d through theperforation and the-noe don nward in the open portion oi thesubstantially set forth.

2. e. rosette consist" r ot a single piece et insulating material haringa marginal rim to bear agai ceiling7 having also an axial screwresolving pa ge extending from top to bottom and enlarged below topermit the screw head to enter the blool-. to some distance7 and iurtnerha' the lateral wall el the enlarged portion of said passage providedwith a perforation for the passage of an electrical conductor,substantially as set `forth.

S. A. rosette or the class described composed oi a one piece blockhaving a vertical the block said opening being larger .trom the bottoniupward to the interior oi" the block and then restricted to torni ashoulder for a screwhead the balance oi the opening being the propersize for a screw body 5 and further having a horizontal or lateralopening in the side ot the block extending into the larger portion cithe opening below the screw head shoulder and also having a hearing rimon the outer i'ieriphery of the block adapted to bear on the ceiling,combined with a screw and an expansion nut Vtor fastening the rosette tothe ceiling and an electric lamp oord extending through the horizontalopening and down through the enlarged portion ot the vertical openingdescribed.

In witness whereof l have hereunto signed my name in the presence ol twosubscribing .vitnesses on this 9th day of July, 1908.

'TTILLIM Y'slTILBL?.grilli-@xiti.

i/Vitnesses JOHN GRANT,

Il. D. LEE.

central opening extending entirely through

